What do you mean by chamfer the cylinders..?? I'm just curious. It's a single action with a loading gate.
I have a Ruger SBH Hunter in a Bisley frame. It's my favorite hunting revolver.
I put a Wolff Spring kit in it and polished the sear. The trigger is a crisp 2.5 lbs now. It made all the difference. Made that creepy drag In The trigger pull go away.
I do not know about bead blasting that gun. I polished mine a bit and now I just wipe it off. It worked great.
Grips are VERY hard to find. Making custom grips would be best if your are capable. I am not.
Order a Belt Mountain base pin also.